The Tamron 500mm SP with a KA adaptor should work nicely then :) I know KA adaptors are (censored) difficult to find in good condition and not cheap at all.
2005/9/7, P. J. Alling <[EMAIL PROTECTED]>: > The FA 1.7x is very good. I've used it a number of times and it > delivers good results even when coupled > with a zoom. You may find that autofocus suffers when you use a mirror > tele. They don't really transmit > enough light. Another problem with the mirror is most are t-mounts and > most t-mounts, (all I've seen in fact), > are painted. The Pentax autofocus system needs a metal lens mount to > short the right contacts to autofocus. > > Marco Ferrari wrote: > > >Dear all, > > > >have you ever used this Teleconverter? > >Have you some comments? > > > >I shot slide films, and I'm interested in converting a mirror lens and the > >SMC-A 50/1.4 (both > >manual focus) in a long telephoto and a 85/2.38 autofocus lenses. > > > >Thanks, > > > >marco > > > > > > > >__________________________________________________________________ > >TISCALI ADSL 1.25 MEGA > >Solo con Tiscali Adsl navighi senza limiti e telefoni senza canone Telecom > >a partire da 19,95 Euro/mese. > >Attivala entro il 31 agosto, il primo MESE è GRATIS! CLICCA QUI. > >http://abbonati.tiscali.it/adsl/sa/1e25flat_tc/ > > > > > > > > > > > > > > > > > -- > When you're worried or in doubt, > Run in circles, (scream and shout). > > -- ---------------------- Thibouille ---------------------- *ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ...
